// Align Self
// 用于控制单个 flex 或网格项如何沿其容器的交叉轴定位的功能类。
.self-auto
  align-self auto

.self-start
  align-self flex-start

.self-end
  align-self flex-end

.self-center
  align-self center

.self-stretch
  align-self stretch

.self-baseline
  align-self baseline
